MCP-TY

Instructions

Implementation Reference

• src/mcp_ty/server.py:409-430 (handler)

  The get_type_info tool is defined here as an MCP tool, providing type information for a symbol at a given position in a file using the LSP client.

  @mcp.tool()
  async def get_type_info(file_path: str, line: int, column: int) -> str:
      """Get type information for symbol at position (1-based)."""
      client = _get_client()
  
      path = Path(file_path).resolve()
      if not path.exists():
          return _error(f"File not found: {file_path}")
  
      try:
          await client.open_document(path)
          hover_info = await client.get_hover(path, line - 1, column - 1)
  
          if not hover_info:
              return _not_found(f"No type info at {path.name}:{line}:{column}")
  
          return _ok({
              "file": path.name,
              "line": line,
              "column": column,
              "type_info": hover_info
          })